![National Geographic 80-20104 Скачать руководство пользователя страница 4](http://html1.mh-extra.com/html/national-geographic/80-20104/80-20104_instruction-manual_3392039004.webp)
4
How To Set Up
Note: We recommend assembling your telescope for the first time in the daylight or in a
lit room so that you can familiarize yourself with assembly steps and all components.
• Find a stable surface, like a table. Set the tripod on the table and open it until the tripod
spreaders are fully extended.
• Snap the telescope tube into the U-shaped clamp on the top of the tripod head.
• Insert the diagonal into the focuser and secure it by tightening the thumbscrews.
• Place your chosen eyepiece into the diagonal. We recommend starting with the 20 mm
because it will provide the widest field of view.
Using Your Telescope:
Now you are ready to start observing! Put the 20 mm eyepiece into the diagonal to get
the widest field of view. This wider field of view will make it easier to locate and track
objects. To move the scope up, down and side to side, grip the telescope near where the
tube meets the focuser and steadily move the tube until your target comes into view in
the eyepiece. It is important to remember that the rotation of the Earth means objects
will move out of your eyepiece fairly quickly. Once you have found and focused on your
desired target, you will have to track the object
as it journeys across the night sky. For a closer
look at an object, you can insert the 6mm
eyepiece. The magnification will increase from
20x to 67x.
Cleaning:
Your telescope is a precision optical device and keeping the optics free of dust and dirt is
crucial for optimal performance. To clean the lenses (objective and eyepiece) use only a
photo-grade soft brush or a lint-free cloth, like a microfiber cloth. Do not press down too
hard while cleaning, as this might scratch the lens. If necessary, the cleaning cloth can be
moistened with an optical glass cleaning fluid and the lens wiped clean using very little
pressure.
The eyepiece is NOT waterproof so do not spray fluids directly onto the glass or
dip it in water. Never use harsh detergents! After you have finished cleaning an eyepiece,
allow it to fully dry before storing.
Make sure your telescope is always protected against dust and dirt.
After use, leave it in a warm room to dry off before storing.
Troubleshooting Guide:
Problem
Solution
No picture
Remove dust protection cap and sun-shield from the
objective opening.
Blurred picture
Adjust focus using focus ring.
No focus possible
Wait for temperature to balance out.
Bad quality
Never observe through a glass surface such as a
window.
Focal Length Eyepiece
Magnification
400 mm
20 mm
20x
400 mm
6 mm
67x